<template>
    <header class="head-nav">
        <el-row>
            <el-col :span="6" class="logo-container">
                <img src="../assets/logo.png" alt="" class="logo">
                <span class="title">vkon在线后台管理系统</span>
            </el-col>
            <el-col :span="6" class="user">
                <div class="userInfo">
                  <img :src="this.user.avatar" class="avatar">
                  <div class="welcome">
                    <p class="name comename">欢迎</p>
                    <p class="name avatarname">{{this.user.name}}</p>
                  </div>
                </div>
                <div class="username">
                  <el-dropdown @command="setDialogInfo" trigger="click">
                    <span class="el-dropdown-link">
                      <i class="el-icon-caret-bottom el-icon--right"></i>
                    </span>
                    <el-dropdown-menu slot="dropdown">
                      <el-dropdown-item command="info">个人信息</el-dropdown-item>
                      <el-dropdown-item command="logout">退出</el-dropdown-item>
                    </el-dropdown-menu>
                  </el-dropdown>
                </div>
            </el-col>
        </el-row>
    </header>
</template>

<script>
import { mapState, mapGetters } from 'vuex'
export default {
  name: 'HeadNav',
  data() {
    return {

    }
  },
  computed: {
    ...mapGetters(['user'])
  },
  methods: {
    setDialogInfo(cmdItem) {
      switch (cmdItem) {
        case 'info':
          this.showInfo()
          break;
      
        case 'logout':
          this.logout()
          break;
      }
    },
    showInfo() {
      this.$router.push('/infoShow')
    },
    logout() {
      //清除token
      localStorage.removeItem('eleToken');
      //清除登录状态
      this.$store.dispatch('clearCurrentState')
      //跳转到登录页
      this.$router.push('/login');
    }
  },
  mounted() {
    //console.log(this.$store.mapGetters) 
  }
}
</script>


<style scoped>
.head-nav {
  width: 100%;
  height: 60px;
  min-width: 600px;
  padding: 5px;
  background: #324057;
  color: #fff;
  border-bottom: 1px solid #1f2d3d;
}
.logo-container {
  line-height: 60px;
  min-width: 400px;
}
.logo {
  height: 50px;
  width: 50px;
  margin-right: 5px;
  vertical-align: middle;
  display: inline-block;
}
.title {
  vertical-align: middle;
  font-size: 22px;
  font-family: "Microsoft YaHei";
  letter-spacing: 3px;
}
.user {
  line-height: 60px;
  text-align: right;
  float: right;
  padding-right: 10px;
}
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  vertical-align: middle;
  display: inline-block;
}
.welcome {
  display: inline-block;
  width: auto;
  vertical-align: middle;
  padding: 0 5px;
}
.name {
  line-height: 20px;
  text-align: center;
  font-size: 14px;
}
.comename {
  font-size: 12px;
}
.avatarname {
  color: #409eff;
  font-weight: bolder;
}
.userInfo{
  display: inline-block;
}
.username {
  display: inline-block;
  cursor: pointer;
  margin-right: 5px;
}
.el-dropdown {
  color: #fff;
}
.el-icon-caret-bottom{
  outline: none;
}
</style>